PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/14-08:12:40
G01     69.5           32.7                4.4 +/-    0.44       7.3 +/-    0.44  0.030 / 0.070
G07     137.9          29.1                6.1 +/-    1.25      10.8 +/-    1.25  0.030 / 0.060
G11     53.1           29.4                3.1 +/-    0.97       5.6 +/-    0.97  0.050 / 0.110
G13     275.1          36.8                6.3 +/-    1.29       9.6 +/-    1.29  0.040 / 0.110
G15     301.6          15.7                1.4 +/-    3.40       3.4 +/-    3.40  0.130 / 0.310
G17     236.8          71.7                5.9 +/-    1.06       6.2 +/-    1.06  0.110 / 0.340
G19     225.2          44.6                6.5 +/-    0.77       8.8 +/-    0.77  0.030 / 0.030
G28     22.6           58.7                4.0 +/-    0.56       4.6 +/-    0.56  0.030 / 0.030
G30     135.9          60.4                6.2 +/-    0.65       7.0 +/-    0.65  0.040 / 0.080